Matrix genes of measles virus and canine distemper virus: cloning, nucleotide sequences, and deduced amino acid sequences

Bellini, W.J.; Englund, G.; Richardson, C.D.; Rozenblatt, S.; Lazzarini, R.A.

Journal of Virology 58(2): 408-416

1986


ISSN/ISBN: 0022-538X
PMID: 3754588
Accession: 005858567

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Abstract
The nucleotide sequences encoding the matrix (M) proteins of measles virus (MV) and canine distemper virus (CDV) were determined from cDNA clones containing these genes in their entirety. In both cases, single open reading frames specifying basic proteins of 335 amino acid residues were predicted from the nucleotide sequences. Both viral messages were composed of approximately 1,450 nucleotides and contained 400 nucleotides of presumptive noncoding sequences at their respective 3' ends. MV and CDV M-protein-coding regions were 67% homologous at the nucleotide level and 76% homologous at the amino acid level. Only chance homology was observed in the 400-nucleotide trailer sequences. Comparisons of the M protein sequences of MV and CDV with the sequence reported for Sendai virus (B. M. Blumberg, K. Rose, M. G. Simona, L. Roux, C. Giorgi, and D. Kolakofsky, J. Virol. 52:656-663; Y. Hidaka, T. Kanda, K. Iwasaki, A. Nomoto, T. Shioda, and H. Shibuta, Nucleic Acids Res. 12:7965-7973) indicated the greatest homology among these M proteins in the carboxyterminal third of the molecule. Secondary-structure analyses of this shared region indicated a structurally conserved, hydrophobic sequence which possibly interacted with the lipid bilayer.